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Corpus Christi Watershed

Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

Articles

Jeff Ostrowski · January 5, 2026

August 1970 • “Graduale Simplex Doc” (12 pages)

Similar to polyester vestments & wreckovations, its sad legacy is bound up with everything regrettable about the 1960s liturgical reforms.

Julie Huebner · January 4, 2026

“Puer Natus in Béthlehem” • (Added Fifths)

A dash of something!

Jeff Ostrowski · January 3, 2026

How Does The Vatican “Rhythm” Actually Sound?

With an excerpt from the feast of the Baptism of the Lord.

Jeff Ostrowski · January 2, 2026

“Adeste Fideles” • Too Many Translations!

Broadly speaking, only one has attained general use throughout the English-speaking world…

Corpus Christi Watershed · December 30, 2025

Card. Heenan on Ronald Knox: “Perhaps the Church’s greatest figure of the 20th century.”

“Although renowned as a preacher and scholar, the real greatness of Knox lay in his holiness of life.” —Cardinal Heenan (Archbishop of Westminster)

Jeff Ostrowski · December 27, 2025

“Kaitrin Drost Strikes Again!” • Plus a Few Random Thoughts and Tirades by Jeff Ostrowski

Imagine walking up into a choir loft and sounding like these young ladies without rehearsal.

Mark Haas · December 26, 2025

Bing Crosby, Christmas, and Catholicism

He served as an unwitting catechist, introducing a young listener to the language and music of Catholicism.

Jeff Ostrowski · December 23, 2025

💰 Are Church Musicians Paid Too Little?

I came very close to paying an unspeakably severe price.

Jeff Ostrowski · December 19, 2025

“O Antiphons” Elevated?

From what I can tell, the 1970 rubrics moved each “O Antiphon” to the Gospel Acclamation at Mass (in late December).

Jeff Ostrowski · December 16, 2025

Should Catholics Sing Protestant Christmas Carols?

Including the “music list” I have prepared for Christmas Midnight Mass.

Corpus Christi Watershed · December 16, 2025

“He never had a single day of conflict with anyone.”

Upon the death of of the Very Reverend Canon Edgard De Laet.

Jeff Ostrowski · December 14, 2025

PDF • “Standard Gregorian Chants for Schools, Churches, Seminaries, & Convents” (1946) —123 pages

Until a few days ago, I knew nothing of this (extremely rare) book. Now it’s been scanned and uploaded—free to all.

Mark Haas · December 13, 2025

The “Word of the Father” Chord: Theology and Harmony Meet at Christmas

It is fitting that the most exquisite chord in Adeste Fideles coincides with the most profound line of theology.

Jeff Ostrowski · December 10, 2025

Crucial Tips • “Teaching Children How to Sing”

When it comes to the children, I help them memorize each word…

Jeff Ostrowski · December 10, 2025

Soloists in Gregorian Chant?

An “ensemble of soloists” will never sound the same as a true choir.

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Corpus Christi Watershed

President’s Corner

    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    PDF Download • “Atténde Dómine”
    Although it isn’t nearly as ancient as other hymns in the plainsong repertoire, Atténde Dómine, et miserére, quía peccávimus tíbi (“Look down, O Lord, and have mercy, for we have sinned against Thee”) has become one of the most popular hymns for LENT—perhaps because it was included in the famous Liber Usualis of Solesmes. This musical score (PDF file) has an incredibly accurate version in English, as well as a nice version in Spanish, and also the original Latin. Although I don’t claim to have a great singing voice, this morning I recorded this rehearsal video.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“Vatican II did not say anything about the direction of the celebrant. […] I love both directions of celebrating Mass. Both are full of meaning for me. Both help me to encounter Christ—and that is, after all, the purpose of the liturgy.”

— Christoph Cardinal Schönborn (February 2007)

Recent Posts

  • Which Mass?
  • Like! Like! Like!
  • PDF Download • “Pange Lingua” in Simple (Contemporary) Polyphony for Three Voices
  • PDF Download • “Gregorian Chant Booklet” mailed by Pope Saint Paul VI to every bishop
  • My Response Surprised A Parishioner ‘Upset’ About Latin

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